QingpingMeng

This is an example to demo how you generate the RSA key pair from server side(.NetCore 3.1) and pass the public key to the client(Browser) for encrypting the data that <= 245 bytes.

RSA-2048 can only support to encrypt up to 245 bytes data.

Generate RSA key pair in C# (.Net Core 3.1):

using var rsaProvider = new RSACng();
// spki is used for browser side encryption
var spki = Convert.ToBase64String(rsaProvider.ExportSubjectPublicKeyInfo());
var encodedPrivateKey = Convert.ToBase64String(rsaProvider.ExportPkcs8PrivateKey());

miglen

List of Linux networking tools

netstat (ss)

Displays contents of /proc/net files. It works with the Linux Network Subsystem, it will tell you what the status of ports are ie. open, closed, waiting, masquerade connections. It will also display various other things. It has many different options. Netstat (Network Statistic) command display connection info, routing table information etc. To displays routing table information use option as -r.

Sample output:

Proto Recv-Q Send-Q  Local Address          Foreign Address        (state)    
tcp4 0 0 127.0.0.1.62132 127.0.0.1.http ESTABLISHED

Integralist

What's the issue?

It can be confusing sometimes knowing where to look for documentation when dealing with C †

† that is if you're not a systems engineer, and have no CS degree, nor learnt C

As an example, you might learn about the strace command and start investigating what your Ruby application is up to. In doing so you'll see lots of calls to different functions and you might decide you want to look up the documentation for those functions.

This could be where your first problem arises. You might think "Ruby is written in C, so I'll look at the C documentation" and then come up with nothing.

turtlemonvh

a.myhost.com {
  tls off
  root /var/www/
  proxy / localhost:8091
  log log/access.a.log
}

b.myhost.com {
  tls off
  root /var/www/

e7d

#!/bin/bash

export AnException=100
export AnotherException=101

# start with a try
try
(   # open a subshell !!!
    echo "do something"
    [ someErrorCondition ] && throw $AnException

rponte

# The command finds the most recent tag that is reachable from a commit.
# If the tag points to the commit, then only the tag is shown.
# Otherwise, it suffixes the tag name with the number of additional commits on top of the tagged object 
# and the abbreviated object name of the most recent commit.
git describe

# With --abbrev set to 0, the command can be used to find the closest tagname without any suffix:
git describe --abbrev=0

# other examples

gosuri

package terraformer

import (
	"bytes"
	"errors"
	"path"
	"path/filepath"

	"...runtime"
	"...store"

expede

;; -*- mode: emacs-lisp -*-
;; This file is loaded by Spacemacs at startup.
;; It must be stored in your home directory.

(defun dotspacemacs/layers ()
  "Configuration Layers declaration.
You should not put any user code in this function besides modifying the variable
values."
  (setq-default
   ;; Base distribution to use. This is a layer contained in the directory

jemygraw

package main

import (
	"crypto/rand"
	"crypto/rsa"
	"crypto/sha1"
	"crypto/x509"
	"encoding/base64"
	"encoding/pem"
	"fmt"

axgle

What is sync.Pool in golang and How to use it

sync.Pool (1/2)

Many Go libraries include custom thread-safe free lists, like this:

var objPool = make(chan *Object, 10)

func obj() *Object {

select {